code: def test_ellipsis_error(self):
      self.assertRaises(error.DataShapeSyntaxError, dshape, "T * ...")
      self.assertRaises(error.DataShapeSyntaxError, dshape, "T * S...")
  
imports: from __future__ import absolute_import, division, print_function
  import ctypes
  import unittest
  import pytest
  from datashader import datashape
  from datashader.datashape import dshape, error, DataShape, Record
label_desc: Use image node_id 6 for calling the TestDataShapeCreation obj's underlying member method code with example usage: obj.test_ellipsis_error() without return types